Results 51 to 60 of about 121,467 (287)

Oxygen Isotope Analysis of Human Bone Phosphate Evidences Weaning Age in Archaeological Populations [PDF]

, 2015
Acknowledgements With special thanks to Jean-Jacques Hublin and the MPI-EVA; to Annabell Reiner (MPI-EVA) and Bernd Steinhilber (Universitat Tubingen) for technical support;and to the Deutscher Akademischer Austausch Dienst for financial support to KB ...
Alvarez, Ambrose, Anderson, Arifeen, Ayliffe, Ayliffe, Balasse, Balasse, Balasse, Balasse, Beaumont, Beresford, Bernard, Blaise, Brettell, Britton, Bryant, Bryant, Bryant, Bryant, Budd, Butte, Camin, Chenery, Clark, D'Angela, Dansgaard, Darling, Darling, Daux, Delgado Huertas, Dettman, Dettwyler, Dettwyler, Duijts, Eckardt, Ehleringer, Epstein, Evans, Evans, Evans, Evans, Fildes, Fogel, France, Fricke, Fricke, Fuller, Fuller, Fuller, Fuller, Fuller, Garn, Gat, Genoni, Gustafson, Halas, Hauber, Heller, Hoppe, Hoppe, Horta, Horta, Huelsemann, Iacumin, Jay, Jenkins, Kennedy, Kennedy, Klinken, Koch, Kohn, Kohn, Kohn, Kohn, Kolodny, Land, Levesque, Levin, Levinson, Lin, Longinelli, Longinelli, Longinelli, Longinelli, Longinelli, Longinelli, Luz, Mannino, Martin, Mays, Mays, Mays, Mekota, Montgomery, Müldner, Müldner, Nelson, Nielsen-Marsh, O'Neil, Pellegrini, Pellegrini, Podlesak, Polischuk, Pollard, Quinn, Reitsema, Rich-Edwards, Richards, Sellen, Sellen, Sharp, Sofaer Derevenski, Stuart-Williams, Sánchez Chillón, Tsutaya, Turner-Walker, Tütken, Tütken, Vennemann, Vitzthum, White, White, Widory, Wright, Wright, Yurtsever, Zanconato, Zazzo, Zazzo   +129 more
core   +1 more source

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

δ13C and δ15N stable isotopes demonstrate seasonal changes in the food web of coral reefs at the Wuzhizhou Island of the South China sea

Ecological Indicators, 2023
With a high species diversity of coral reefs, Wuzhizhou (WZZ) is a tropical marine ranch built by China. In the present study, we investigated the structure and function of coral reef food webs on WZZ in Sanya to understand how climate change and human ...
Hongyang Yin, Yuting Chen, Wengang Ma, Wentao Zhu, Hao Wang, Qian Zhou, Jianlong Li, Aimin Wang, Xiubao Li, Qiang Xu   +9 more
doaj   +1 more source

Tracing the source of soil organic matter eroded from temperate forest catchments using carbon and nitrogen isotopes [PDF]

, 2016
Soil erosion continuously redistributes soil and associated soil organic matter (SOM) on the Earth's surface, with important implications for biogeochemical cycling of essential elements and terrestrial carbon sequestration.
Berhe, AA, Fogel, ML, Hart, SC, Hunsaker, CT, Johnson, DW, McCorkle, EP, McFarlane, KJ   +6 more
core   +1 more source

Elementary Isotopic Analysis: Determination of Nitrogen [PDF]

Nature, 1947
We have recently described an isotopic method for the determination of oxygen1 and carbon2 in organic compounds by using heavy oxygen (O18) and carbon (C13) respectively in conjunction with a mass spectrometer. Using the same method, higher precision is possible in the determination of nitrogen and hydrogen, since N15 and H2 (deuterium) are available ...
A D, KIRSHENBAUM, S G, HINDIN, A V, GROSSE   +2 more
openaire   +2 more sources

Meta‐analysis fails to show any correlation between protein abundance and ubiquitination changes

FEBS Open Bio, EarlyView.
We analyzed over 50 published proteomics datasets to explore the relationship between protein levels and ubiquitination changes across multiple experimental conditions and biological systems. Although ubiquitination is often associated with protein degradation, our analysis shows that changes in ubiquitination do not globally correlate with changes in ...
Nerea Osinalde, Unai Alduntzin, Gorka Prieto, Ugo Mayor   +3 more
wiley   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Application of Stable Isotopes in Identifying the Sources and Formation of Sulfate and Nitrate in PM_2.5: A Review

Atmosphere
Sulfate and nitrate are important components of atmospheric PM2.5, which is the main contributor of haze. Therefore, studying the sources and formation mechanisms of atmospheric sulfate and nitrate is very important for the prevention and control of haze
Jiamei Peng, Chen Cheng, Shanshan Wang, Gongren Hu, Jinpei Yan, Ruilian Yu   +5 more
doaj   +1 more source

The niche of shrimp stocks (Xiphopenaeus kroyeri Heller, 1862) from southeastern Brazil: a stable isotope approach

Journal of Threatened Taxa, 2020
The penaeid shrimp Xiphopenaeus kroyeri is the second most important species of crustacean in Brazilian fisheries. Stable isotopes of carbon and nitrogen are chemical proxies to provide quantitative information about the consumer isotopic niche, which is
Keltony de Aquino Ferreira, Leandro Rabello Monteiro, Ana Paula Madeira Di Beneditto   +2 more
doaj   +1 more source

A Comparative Study of Nitrogen and Oxygen Isotopes of Nitrate by Bacterial Denitrifier and Chemical Conversion

Journal of Isotopes, 2023
In this study, nitrate in standard samples, seawater and lake water and tap water samples were converted to N2O using bacterial denitrification and chemical conversion, the nitrogen and oxygen isotope composition were determined by Isotope Ratio Mass ...
YIN Xijie;YANG Haili;CUI Kunlei;SUN Zhilei;LI Yunhai
doaj   +1 more source